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| author | Charles Keepax <ckeepax@opensource.cirrus.com> | 2019-05-29 11:46:05 +0200 |
|---|---|---|
| committer | Chanwoo Choi <cw00.choi@samsung.com> | 2019-05-30 03:02:17 +0200 |
| commit | fbdc60b2a7871ccb59f35b0fba2dd82251f8bd70 (patch) | |
| tree | 3719485d2bbf9de946f444a30b47401ee2279ea6 /drivers/extcon | |
| parent | Linux 5.2-rc2 (diff) | |
| download | linux-fbdc60b2a7871ccb59f35b0fba2dd82251f8bd70.tar.xz linux-fbdc60b2a7871ccb59f35b0fba2dd82251f8bd70.zip | |
extcon: arizona: Correct error handling on regmap_update_bits_check
Ensure the case when regmap_update_bits_check fails and the change
variable is not updated is handled correctly.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Diffstat (limited to 'drivers/extcon')
| -rw-r--r-- | drivers/extcon/extcon-arizona.c | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index 9327479c719c..519e89aedd4a 100644 --- a/drivers/extcon/extcon-arizona.c +++ b/drivers/extcon/extcon-arizona.c @@ -335,10 +335,12 @@ static void arizona_start_mic(struct arizona_extcon_info *info) arizona_extcon_pulse_micbias(info); - regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, - ARIZONA_MICD_ENA, ARIZONA_MICD_ENA, - &change); - if (!change) { + ret = regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, + ARIZONA_MICD_ENA, ARIZONA_MICD_ENA, + &change); + if (ret < 0) { + dev_err(arizona->dev, "Failed to enable micd: %d\n", ret); + } else if (!change) { regulator_disable(info->micvdd); pm_runtime_put_autosuspend(info->dev); } @@ -350,12 +352,14 @@ static void arizona_stop_mic(struct arizona_extcon_info *info) const char *widget = arizona_extcon_get_micbias(info); struct snd_soc_dapm_context *dapm = arizona->dapm; struct snd_soc_component *component = snd_soc_dapm_to_component(dapm); - bool change; + bool change = false; int ret; - regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, - ARIZONA_MICD_ENA, 0, - &change); + ret = regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, + ARIZONA_MICD_ENA, 0, + &change); + if (ret < 0) + dev_err(arizona->dev, "Failed to disable micd: %d\n", ret); ret = snd_soc_component_disable_pin(component, widget); if (ret != 0) @@ -1727,12 +1731,15 @@ static int arizona_extcon_remove(struct platform_device *pdev) struct arizona *arizona = info->arizona; int jack_irq_rise, jack_irq_fall; bool change; + int ret; - regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, - ARIZONA_MICD_ENA, 0, - &change); - - if (change) { + ret = regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, + ARIZONA_MICD_ENA, 0, + &change); + if (ret < 0) { + dev_err(&pdev->dev, "Failed to disable micd on remove: %d\n", + ret); + } else if (change) { regulator_disable(info->micvdd); pm_runtime_put(info->dev); } |